Joule Thief

[electricme]

@Jeanna,
A new scope?      you have a new oscillope       , a hand held unit at that?            
well well well, congrats to you jeanna.

You have waited for a long long time for this instrument, now the world of electronics is going to open up to you, be prepared for more questions it will produce, like, whats that squiggly line for, whats that long line going up and then down, ha ha. 
(I spend hours on scope time displays)
All the Ooooh's and the arrrrr's as you begin to understand the waveforms and what they mean lol.

Jeanna, I am so happy for you, I know it (mr scope) will take pride of place in your instrument bay or rack.

Do you have an adjustable power supply? (it can take the place of batteroes, it can even recharge batteries with a series light bulb).

Sometimes it is a struggle trying to understand what some electrical part is doing, especially if you carnt see the smoke, now you can see the smoke that makes the transister work, lol

Try this Jeanna, clip the black earth lead to the neg at the battery, then move the tip of the probe to the base of the OJ transister, you should be able to see the on and off pulses waveforms, ehhhhhaaaaa, the way to gooooo.
Try it before the resistor, then after the resistor.

Connect the probes to a loud speaker then speak into it, the waveform of your voice will be seen.

Warning, don't try High Voltage probeing, without a 10meg ohme resister in series with the probe itself, sometimes you might have to put a 20Mohm one there.

@ all
wisper, Someone has gota oscillope an they read the manual, 2 1/2 times good lasss. ha ha
Keep that manual close to you, you will need it constantly for a while.

@Jeanna, thing to remember is to always setup the trace on the middle line,(0volt probes not touching circuit) then work out your measurements from there, the trace will go upwards or downwards, you go by the division pattern on the scope and the Volts/Time Division scale, yours may also have a digital read out too.

Another thing to do is take the scope and a Joule thief to a electronic repair man/place, and ask them to show you and explain to you the waveforms etc etc.

jim
he's got a screw loose in the top paddock 2 day

@bill,
I went back and got my steel ring, it was still there, i'm in the process of steelbrushing the scale off it right now.

jim

a new scope, a new scope whacko, a new scope, a new scope, wonders will never cease, its going to get rather interresting from now on folks, a woman with a lot of scope is going a scopeing, lots of posts coming up hee hee hee, comon scopiiee, tell me whats happenning here, lol
quiet jim, get back to study on post 400
 

[jadaro2600]

I made an interesting winding today - it's bifilar - twisted pair, wound all the way around, evenly spaced 28 winds of 26 gage wire around a ferrite toroid - electronics goldmine #g16332.  I then wound a pickup coil on this, three winds in between each of the bifilar winds.  As I said earlier, I'm getting junk results on these toroids so far - until now.

Well, basically, I removed the resistor entirely.  The thing runs off of pure inductance flyback to the base. ...I apologize in advance for not including the specs - I'm fixing to hit the sack.

The transistor is not overheating - if it was, then it would overheat with the resistor there in the first place, there's a big red line where I removed the resistor.  Circuit diagram is included in the post with a picture.

Led on the right is running off the pickup coil, there's a large capacitor on the left that read 40v when the circuit is unloaded.

There is no neon in this picture despit it being in the diagram - it's a non essential path.

Mk1 is right, @ jeanna, btw, less is more, but this is with regard to his setups - I'm just looking for weird phenomenon when I prototype.  This one is what i've been looking for when it comes to weirdness - I seem to have gotten the flyback voltage to trigger the base - as potential flows in from positive to the collector through the inductance, the flyback trigger the base, and it automatically turns on, ..so, the flyback is what's cutting the thing on in the first place - the capacitor is there to keep a little charge in the system.

[electricme]

@all
How Do I Upload A Video To U Tube

I just recorded a item on TV channel SBS on the 24th March 2009 using my video camera.

It is 113megs in size.

It is about Ocean Polluting with 6 tons of iron, you can see it flowing through a tube
the aim is to force algae blooming in the oceans

Aerisols Spraying.

These people also want to cover a thousand miles of oceans with stuff,

close up of aerosol spraying using prop lo altitude planes.
U can see it being prepared.

If I can convert it from MOV to a smaller file I would try this first

But I need to know how eo make the 113meg file smaller if possible.

Bill or Gadget, any pointers please


jim

[Koen1]

@all
I thought you Might be interested in these TOP SECRET Diagrams . I Can't tell you where they came from as the answer is I Don't Know .  hope you can Duplicate them . We Will need them Shortly !Enjoy
the bottom pictorial is Near Unity
Gadget

Interesting pics there Gadget

Seems a little odd to me though... First of all, is this claimed to be over, under, of "near" unity?
The text on the pics suggests different things...
Second, this seems like a very rough MEG variation or something similar... It is easy to see
that the basic concept here is that permanent magnets are used to provide a permanent
magnetostatic field, and the L1&2 coils are intended to pulse that field, which should result
in a fluctuating magnetic field at the collector coils and these should produce output pulses...
But since induced current is (according to established theory) a result of the change of the
magnetic field strength and/or polarity, the magnetostatic field of the permanent magnets
should not really add anything to this amount of change of field strength since all the change
is produced by L1&2 and not at all by the magnets... So one would expect to see fairly normal
transformer action as long as the input pulses to L1&2 are fed correctly.

I have pondered such variations for a long time and this is almost exactly one of the variations
I have considered. Not the most promising one, I must say.
I still have a slightly different design that is also intended to use a permanent magnet for flux source
but the core is shaped quite differently.
To drop a hint, I think we want to be able to reroute the flux path in such a way that the collector
coil(s) really sees the field "flip over" periodically. This cannot be done in a single loop core,
it needs a special double loop core with control coils to induce the "flipping over".
But that is still an experiment I want to perform. I just have some trouble obtaining the right
core elements. I need several U-cores and one or two I-cores too, and I can only find very
expensive new ones to order so the experiment is on pause untill I find some cheap ones
(or hit the lottery).

Kind regards,
Koen

[altrez]

@jeanna

I am not sure exactly what you mean by center of the loop? Is the loop the toroid? I asked my wife to grab the hula-hoop out of the closet to help me figure this out. She looked at me a bit odd and then agreed. After watching her demo the hula-hoop dance I forgot what I was doing and umm we went to bed

What is the loop? I have wrapped my pickup coil through the center of the toroid like I wired up the main circuit.

Thank you so much!